Data

Data collection is the process of...

• gathering and measuring information on variables of interest

• gathering and measuring books on variables of interest

• gathering and measuring newspapers on variables of interest

• gathering and measuring diaries on variables of interest

Which data do you think is more comfortable to use and why?

What do you need to store(keep) old forms of information? Where do you put these things?

What do you need to store(keep) digital forms of information? Where do you put these things?

Will the quality of this information be the same, worse, better or different if you copy it?

• The copy will be the same.

• The copy will be different.

• The copy will be of the same quality as the original.

• The copy may be of worse quality than the original.

Which form of information takes a longer amount of time to copy?

• The physical data.

• The digital data.

Which claim about traffic congestion is supported by the graph?

• New York City commuters spend less time annually delayed by traffic congestion than the average for very large cities.

• Los Angeles commuters are delayed more hours annually by traffic congestion than are commuters in Washington, D.C.

• Commuters in Washington, D.C., face greater delays annually due to traffic congestion than do commuters in New York City.

• Commuters in Detroit spend more time delayed annually by traffic congestion than do commuters in Houston, Atlanta, and Chicago.

Which statement best summarizes the information presented in the graph?

• Far more people around the world own computers and cell phones today than in 2005.

• The number of people sharing digital information has more than tripled since 2005.

• The volume of digital information created and shared has increased tremendously in recent years.

• The amount of digital information created and shared is likely to be almost 8 zettabytes in 2015.

According to the graph, which statement is true about the amount of digital information projected to be created and shared globally in 2012?

• Growth in digital information creation and sharing was projected to be wildly out of proportion to growth in 2011 and 2013E.

• The amount of digital information created and shared was projected to begin a new upward trend.

• The amount of digital information created and shated was projected to peak.

• The amount of digital information created and shared was projected to pass 2 zettabytes for the first time.

Which of the following best describes the information in the graph?

• The average holder of any type of college degree is less than half as likely to be unemployed as is the average person who has not completed high school.

• For every level of education, as education increases the unemployment rate decreases.

• As the level of education increases, the unemployment rate and the median weekly income are positively correlated.

• The median holder of an associate’s degree earns more than twice as much per week as the median person who has not completed high school.